﻿//Released under the MIT License.
//
//Copyright (c) 2015 Ntreev Soft co., Ltd.
//
//Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
//documentation files (the "Software"), to deal in the Software without restriction, including without limitation the 
//rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit 
//persons to whom the Software is furnished to do so, subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in all copies or substantial portions of the 
//Software.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 
//WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 
//COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
//OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

namespace Ntreev.Library.Psd
{
    public class PathResolver : PsdResolver
    {
        private readonly Dictionary<Uri, PsdDocument> uriToDocuments = new Dictionary<Uri, PsdDocument>();

        public override PsdDocument GetDocument(Uri absoluteUri)
        {
            string filename = absoluteUri.LocalPath;
            if (File.Exists(filename) == false)
                throw new FileNotFoundException(string.Format("{0} 파일을 찾을 수 없습니다.", filename), filename);

            if (uriToDocuments.ContainsKey(absoluteUri) == false)
            {
                PsdDocument document = PsdDocument.Create(filename);
                uriToDocuments.Add(absoluteUri, document);
            }

            return uriToDocuments[absoluteUri];
        }
    }
}
